2 Replies Latest reply on Apr 29, 2015 7:42 PM by @gmail.com

    I need more DMA Buffer in FX3s



      I design a USB system using FX3s chip. I need 32KB DMA buffer for USB control, and need more 32KB DMA buffer for SD card Control. but there are no allocated both memory. CyU3PDmaChannelCreate function returned a Error with number 16 meaned CY_U3P_ERROR_MEMORY_ERROR.  


      I think system has limit memory 32KB for DMA buffer.


      according to default application memory map in cyfxtx.c, buffer area size is 224KB. Can I use whole buffer region for DMA buffer??


      Thank you